CVE-2026-45571

medium

Published 2026-05-27 · Modified 2026-05-29

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CVSS v3

5.4

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.4

Description

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, a path validation issue in go-git could allow crafted repository data to affect files outside the intended checkout target, including the repository's .git directory. These validations were introduced in upstream Git years ago, so the vulnerability arose from go-git drifting from those checks. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.

Predictions

Exploit likelihood

64%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Windows Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Mixed 4 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Fixed	`5.19.1-1`
forky	Fixed	`5.19.1-1`
bookworm	Affected	—

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/go-git/go-git/v5	`<5.19.1`	`5.19.1`
Go	github.com/go-git/go-git/v6	`<6.0.0-alpha.4`	`6.0.0-alpha.4`
Go	github.com/go-git/go-git	`<=44.7.0`
GO	github.com/go-git/go-git	`<= 44.7.0`
GO	github.com/go-git/go-git/v6	`<= 6.0.0-alpha.3`	`6.0.0-alpha.4`
GO	github.com/go-git/go-git/v5	`<= 5.19.0`	`5.19.1`

References

CWEs

CWE-22

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.